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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.dlc;
import android.content.Context;
import org.mozilla.gecko.dlc.catalog.DownloadContent;
import org.mozilla.gecko.dlc.catalog.DownloadContentCatalog;
import java.io.File;
/**
* CleanupAction: Remove content that is no longer needed.
*/
public class CleanupAction extends BaseAction {
@Override
public void perform(Context context, DownloadContentCatalog catalog) {
for (DownloadContent content : catalog.getContentToDelete()) {
if (!content.isAssetArchive()) {
continue; // We do not know how to clean up this content. But this means we didn't
// download it anyways.
}
try {
File file = getDestinationFile(context, content);
if (!file.exists()) {
// File does not exist. As good as deleting.
catalog.remove(content);
return;
}
if (file.delete()) {
// File has been deleted. Now remove it from the catalog.
catalog.remove(content);
}
} catch (UnrecoverableDownloadContentException e) {
// We can't recover. Pretend the content is removed. It probably never existed in
// the first place.
catalog.remove(content);
} catch (RecoverableDownloadContentException e) {
// Try again next time.
}
}
}
}
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